A kind of Multi-purpose tunnel arrangement structure
Technical field
The present invention relates to a kind of tunnel arrangement structure, especially relate to a kind of Multi-purpose tunnel arrangement structure, belong to Hydraulic and Hydro-Power Engineering Building Design technical field of construction.
Background technology
At present in Hydraulic and Hydro-Power Engineering, during riverbed architecture construction, need tunnel and Diversion Tunnel that the current in upper river are caused downstream river course; After riverbed building has been built, for meeting lower storage basin earial drainage or downstream diversion requirement, need again to arrange earial drainage or diversion tunnel, and just discarded after lock under Diversion Tunnel before.Therefore, for making full use of Diversion Tunnel, the emphasis just becoming research is arranged in the combination of earial drainage or diversion tunnel and Diversion Tunnel.The combination of earial drainage or diversion tunnel and Diversion Tunnel, Project Areas main structures can be simplified arrange, construction investment can be saved, but tunnel of different nature combines to be arranged, because operation condition is different, discharge flow is different, presses Diversion Tunnel design completely or by permanent outlet structure escape works design, all can not meet respective requirement.
Summary of the invention
Technical problem to be solved by this invention is: provide one both to may be used for Hydraulic and Hydro-Power Engineering construction period, may be used for again this project construction complete after run time the Multi-purpose tunnel arrangement structure of forever facing combination.
For solving the problems of the technologies described above adopted technical scheme be: a kind of Multi-purpose tunnel arrangement structure, comprise tunnel body and be arranged in the lock chamber body containing end bank on described tunnel body, described lock chamber body comprises the water conservancy diversion lock chamber body and diversion flood discharge lock chamber body that are transversely arranged side by side, and the end bank elevation of described diversion flood discharge lock chamber body is higher than the end bank elevation of described water conservancy diversion lock chamber body.
Be further, correspondingly respectively in institute's diversion flood discharge lock chamber body and water conservancy diversion lock chamber body be provided with diversion flood discharge hole and pod apertures, the area being arranged on the aperture, diversion flood discharge hole in described diversion flood discharge lock chamber body is greater than the area in the pod apertures aperture be arranged in described water conservancy diversion lock chamber body.
Further, in the tunnel body in described lock chamber body downstream, be also provided with a stifled bundle waterwall extended longitudinally, the upstream extremity of described bundle waterwall is connected with the side wall of described pod apertures, the height of water level crossing flowing water preset when its vertical height is not less than overcurrent.
Be further, the base surface being positioned at the tunnel body of described lock chamber body upstream side is made up of horizonal base plate face and slope base surface on its cross section, described horizonal base plate face is longitudinally connected with the Di Kan position of described water conservancy diversion lock chamber body, and described slope base surface is longitudinally connected with the Di Kan position of described diversion flood discharge lock chamber body.
Further, correspondingly respectively in described water conservancy diversion lock chamber body and diversion flood discharge lock chamber body diversion gate and diversion floodgate is furnished with.
Further, described diversion gate comprises water conservancy diversion Emergency Gate and water conservancy diversion Service gate, and described water conservancy diversion Emergency Gate is arranged in the upstream side of described water conservancy diversion Service gate along water (flow) direction; Described diversion floodgate comprises diversion flood discharge Emergency Gate and diversion flood discharge Service gate, and described diversion flood discharge Emergency Gate is arranged in the upstream side of described diversion flood discharge Service gate along water (flow) direction.
Further, described tunnel body and described lock chamber body are concrete structure.
The invention has the beneficial effects as follows: due to be transversely arranged side by side water conservancy diversion lock chamber body and diversion flood discharge lock chamber body at described lock chamber body, and make the end bank elevation of end bank elevation higher than described water conservancy diversion lock chamber body of described diversion flood discharge lock chamber body.Like this, in the construction period of Hydraulic and Hydro-Power Engineering, when needing the diversion carried out compared with low water stage, close and cut stream plugging device in described diversion flood discharge lock chamber body, and make described water conservancy diversion lock chamber body keep Channel Group, current in upper river just can cause in downstream river course by the water conservancy diversion lock chamber body lower through end bank elevation, meet construction requirement and do not affect the construction of engineering; And complete at the construction of this Hydraulic and Hydro-Power Engineering, under water conservancy diversion lock chamber body after lock shutoff, when needing to carry out diversion flood discharge, only need open the plugging device in described diversion flood discharge lock chamber body, namely described tunnel body can again be utilized by the water in upper pond to lower storage basin earial drainage or to downstream diversion, thus realize the water conservancy diversion that same tunnel body both may be used for Hydraulic and Hydro-Power Engineering construction period, may be used for again this project construction complete after run time diversion flood discharge function, realize forever facing combination, reach investment reduction, the object reduced costs.
Accompanying drawing explanation
Fig. 1 is the layout plan of a kind of Multi-purpose tunnel arrangement structure of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 1;
Fig. 5 is the D-D sectional view of Fig. 1;
Fig. 6 is the E-E sectional view of Fig. 1.
Be labeled as in figure: tunnel body 1, end bank 2, lock chamber body 3, water conservancy diversion lock chamber body 4, diversion flood discharge lock chamber body 5, diversion flood discharge hole 6, pod apertures 7, bundle waterwall 8, base surface 9, horizonal base plate face 10, slope base surface 11, diversion gate 12, diversion floodgate 13, water conservancy diversion Emergency Gate 14, water conservancy diversion Service gate 15, diversion flood discharge Emergency Gate 16, diversion flood discharge Service gate 17.
Detailed description of the invention
As shown in Figure 1, Figure 2 and be that one provided by the invention both may be used for Hydraulic and Hydro-Power Engineering construction period shown in Fig. 3, may be used for again this project construction complete after run time the Multi-purpose tunnel arrangement structure of forever facing combination.Described way tunnel arrangement structure comprises tunnel body 1 and is arranged in the lock chamber body 3 containing end bank 2 on described tunnel body 1, described lock chamber body 3 comprises the water conservancy diversion lock chamber body 4 and diversion flood discharge lock chamber body 5 that are transversely arranged side by side, and end bank 2 elevation of described diversion flood discharge lock chamber body 5 is higher than end bank 2 elevation of described water conservancy diversion lock chamber body 4.Due to be transversely arranged side by side water conservancy diversion lock chamber body 4 and diversion flood discharge lock chamber body 5 at described lock chamber body 3, and make end bank 2 elevation of end bank 2 elevation higher than described water conservancy diversion lock chamber body 4 of described diversion flood discharge lock chamber body 5.Like this, in the construction period of Hydraulic and Hydro-Power Engineering, when needing the diversion carried out compared with low water stage, close and cut stream plugging device in described diversion flood discharge lock chamber body 5, and make described water conservancy diversion lock chamber body 4 keep Channel Group, current in upper river just can cause in downstream river course by the water conservancy diversion lock chamber body 4 lower through end bank 2 elevation, meet construction requirement and do not affect the construction of engineering; And complete at the construction of this Hydraulic and Hydro-Power Engineering, after the 4 times lock shutoff of water conservancy diversion lock chamber body, when needing to carry out diversion flood discharge, only need open the plugging device in described diversion flood discharge lock chamber body 5, namely described tunnel body 1 can again be utilized by the water in upper pond to lower storage basin earial drainage or to downstream diversion, thus realize the water conservancy diversion that same tunnel body 1 both may be used for Hydraulic and Hydro-Power Engineering construction period, may be used for again this project construction complete after run time diversion flood discharge function, realize forever facing combination, reach investment reduction, the object reduced costs.Aforesaid stream plugging device and the plugging device cut is exactly of the prior artly cut stream and/or the gate of shutoff.
In above-mentioned embodiment, in order to better adapt to water conservancy diversion, diversion flood discharge work to the different requirements of discharge, in conjunction with the feature being provided with diversion flood discharge hole 6 and pod apertures 7 corresponding respectively in institute's diversion flood discharge lock chamber body 5 and water conservancy diversion lock chamber body 4 in existing technology, the area in the aperture, diversion flood discharge hole 6 be arranged in described diversion flood discharge lock chamber body 5 is greater than the area in pod apertures 7 aperture be arranged in described water conservancy diversion lock chamber body 4, with the orifice area requirement of satisfied different discharge.
In above-mentioned embodiment, after described Hydraulic and Hydro-Power Engineering comes into operation, a large amount of silt can be piled up at the upstream side of described lock chamber body 3, affect the diversion flood discharge work of described tunnel body 1.As shown in Figure 4, described silt for the ease of piling up is discharged to downstream, a stifled bundle waterwall 8 extended longitudinally also is provided with in the tunnel body 1 in described lock chamber body 3 downstream, the upstream extremity of described bundle waterwall 8 is connected with the side wall of described pod apertures 7, the height of water level crossing flowing water preset when its vertical height is not less than overcurrent.Like this when needs sand surfing, only the gate need opened in described water conservancy diversion lock chamber body make current by pod apertures 7 described bundle waterwall 8 restraint narrow after become more rapid time can reach the object washing away silt.Simultaneously, for the ease of the accumulation of silt, the base surface 9 of the tunnel body 1 being positioned at described lock chamber body 3 upstream side is made up of horizonal base plate face 10 and slope base surface 11 on its cross section, described horizonal base plate face (10) is longitudinally connected with end bank 2 position of described water conservancy diversion lock chamber body 4, and described slope base surface 11 is longitudinally connected with end bank 2 position of described diversion flood discharge lock chamber body 5.Like this, utilize the passing function of slope base surface 11 just a large amount of silt can be accumulated to the upstream side of described water conservancy diversion lock chamber body 4, thus in running after described Construction for Hydroelectric Project completes, sand washing can be carried out by the gate in irregular unlatching water conservancy diversion lock chamber body 4.
Multi-purpose tunnel arrangement structure described in the application is in order to reduce design and construction cost, as showing of Fig. 5, Fig. 6, also take full advantage of the structure of existing lock chamber body, namely correspondingly respectively in described water conservancy diversion lock chamber body 4 and diversion flood discharge lock chamber body 5 be furnished with diversion gate 12 and diversion floodgate 13; Described diversion gate 12 comprises water conservancy diversion Emergency Gate 14 and water conservancy diversion Service gate 15, and described water conservancy diversion Emergency Gate 14 is arranged in the upstream side of described water conservancy diversion Service gate 15 along water (flow) direction; Described diversion floodgate 13 comprises diversion flood discharge Emergency Gate 16 and diversion flood discharge Service gate 17, and described diversion flood discharge Emergency Gate 16 is arranged in 17 upstream sides of described diversion flood discharge Service gate along water (flow) direction.Meanwhile, described tunnel body 1 and described lock chamber body 3 still adopt concrete structure.